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- # -*- coding: utf8 -*-
- import re
- print u'Числа фиббоначи'
- while 1:
- print u'Введите номер элемента ряда:'
- n = raw_input()
- if re.match(r'[1-9]\d*$', n):
- break
- n = int(n)
- a = c = summ = 1
- b = 0
- while a < n:
- summ = b + c
- b = c
- c = summ
- a += 1
- print u'Результат: %s' % summ
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